According to Wikipedia:
Artificial intelligence (AI) is the intelligence of machines and the branch of computer science that aims to create it. AI textbooks define the field as "the study and design of intelligent agents"[2] where an intelligent agent is a system that perceives its environment and takes actions that maximize its chances of success

Most recently, I was involved with helping develop technology that identified malicious websites using algorithmic learning techniques. The output was then used to protect people on the Internet from visiting such sites. That is an AI system in my view.